Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net loss (including noncontrolling interests)	$ (4,198)	$ (4,128)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation expense	48	89
Depreciation and amortization	55	104
Amortization of operating lease right-of-use assets	49	327
Recoveries of bad debt		(45)
Changes in operating assets and liabilities:
Accounts receivable and unbilled revenue, net	512	294
Inventory	(689)	(1,691)
Prepaid expenses and other current assets	(76)	45
Accounts payable, accrued payroll and employee benefits, and accrued expenses	256	(386)
Contract liabilities	(8)	(6)
Operating lease obligations	(49)	(297)
Net cash used in operating activities	(4,100)	(5,694)
Cash flows from investing activities:
Purchase of property and equipment	(58)	(54)
Net cash used in investing activities	(58)	(54)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of offering costs	7,866
Repurchase of common stock		(12)
Principal payments on finance lease obligations	(77)	(135)
Net cash provided by (used in) financing activities	7,789	(147)
Effect of exchange rate changes on cash and cash equivalents	24	(186)
Net increase (decrease) in cash and cash equivalents	3,655	(6,081)
Cash and cash equivalents at beginning of period	14,816	17,383
Cash and cash equivalents at end of period	18,471	11,302
Supplemental disclosure of cash flow information:
Cash paid for income taxes	95	2
Cash paid for interest	8	6
Supplemental disclosure of non-cash investing and financial activities:
Property and equipment obtained in exchange for lease obligations		$ 24